There's no way they're gonna go that heavy on the heavy-hitters/A-listers in this wave. They never do that. It might have one or two of the ones you list there, but there'll definitely be some more obscure characters.

we are rumored to get Magneto and Sabretooth, so that's actually 5 of the 8. I'm sure the others will be coming in 2019 or at very latest 2020. Just my opinion here but of the hero X-Men Hasbro has yet to do, Nightcrawler, Beast and Gambit (along with Angel and to a less degree Bishop) are the last A list X-Men to be done, obviously not including villains there. Besides, f they filled the first waves with all A-listers there wouldn't be enough of them left to fill out further waves, though of course they'll do that with Wolverine anyways.